4 Questions
Why do viruses make the definition of life difficult?
Viruses make the definition of life difficult because they replicate only in host cells, blurring the distinction between living and non-living matter.
What are some of the harsh environments occupied only by extremophiles?
Some of the harsh environments occupied only by extremophiles include extreme heat, acidity, or salinity, as well as deep-sea hydrothermal vents.
Where does life exist on Earth according to the text?
Life exists all over the Earth in air, water, and soil, with many ecosystems forming the biosphere.
When did life originate according to the text?
Life originated at least 3.5 billion years ago, resulting in a universal common ancestor.
Test your knowledge of the fundamental characteristics and concepts of life with this engaging quiz. Explore the definitions and attributes that distinguish living matter from non-living matter, including homeostasis, organization, metabolism, growth, adaptation, response to stimuli, and reproduction. Challenge yourself with philosophical perspectives on living systems and self-organizing processes.
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